Improvement in machines for casting printers  leads



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l. 'GOUDALE. v Machines for CastingPrin ters Leads.

Patented Oct. 6, 1874.

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jflQ-GUODALE-{iv Ma-chines for Casting Printers Leads.

N0. 155,609. Patented Oct. 6,1874.

Q mass-64.7 I 4 Y THE GRAPHIC CGZFHOTO'LITH-SBE M PARK PLACE, N.Y.

UNITED STATES PATENT QFFIGE.

JOHN GOODALE, OF NORTH CAMBRIDGE, ASSIGNOR TO LORENZO DYER,

- on BOSTON, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR CASTING PRINTERS LEADS.

Specification forming part of Letters Patent No. 155,609, dated October6, 1874 application filed May 22, 1874.

To all whom it may concern:

Be it known that 1, JOHN GOODALE, of North Cambridge, Middlesex county,State of Massachusetts, have invented an Improvement in Machines forCasting Printers? Leads, of which the following is a description:

The nature of my invention is that of a combination of machinery bywhich molten typemetal is poured onto a flexible revolving belt of metaland pressed down by a similar belt above, being thus, when solidified,formed into a thin sheet, which, by an appropriate device, is cut into anumber of strips, which are then planed or smoothed on the upperand-under surfaces, and then cut into the desired lengths; and theobject is the manufacture of printers leads. 3 T T Figure l is a viewfrom one side of the machine in perspective. Fig. 2 is a view from theother side, being a vertical elevation. Fig. 3 is a vertical sectionlengthwise.

In the drawings, A, Fig.2, is one side of a frame (A in Fig. 1 is theopposite side) in the shape of a parallelogram when seen from above. B BB, Fig. 2, are three (of six) legs supporting the frame. 0, Figs. 1, 2,and 3, is a melting-pot, holding the type-metal, and heated by means ofthe furnace D, which is supported by the frame at one end of it. E,Figs. 1, 2, and 3, is a spout, which conveys the melted metal down tothe other portion of the machine. F, Fig. 1, is the handle to a leverattached to the bottom of the melting,

pot G, the inner end of which lever F, Fig. 3, covers an aperture (seenin Fig. l) in the center of the bottom of the melting-pot C, by whichthe aperture is opened or closed atpleasure, to permit or prevent thepassage of the molten metal from the melting-pot. G G, Figs. 1 and 3, isa thin, flexible, endless band of steel, called the lower band, borne bythe two lower-band drums H H Figs. 1, 2, and 3, supported by bearingsattached to two pairs of the legs of the frame. The two boxes carryingthe shaft ends of the lower-band drum H are seen in Figs. 1 and 2 to beso fitted to the respective legs of the frame which bears them as thatthey can be made to slide back and forward horizontally by means,respectively, of the set-screws J J, Fig. 1, J,

:Fig. 2. A similar arrangement is seen in the drawings ofa pair ofsliding boxes, L, Fig. 1, L, Fig. 2, sliding back and forward by meansof the pair of set-screws K, Fig. 1, K, Fig. 2, (and kept in place bythe two side screws K and lifted and lowered by the top screws K K Figs.1 and 2,) jupon the tops of uprights projecting perpenjdicularly fromthe upper surfaces of the twosides, respectively, of the frame A A Thesetwo boxes L L bear the shaft ends of a drum, IM, Figs. 1, 2, and .3, oneof a pair, called the upper-band drums, which drum bears a second thin,flexible endless band of steel, N, Figs. 1, 2, and 3, called the upperband. The band is :also borne by a second drum, M Figs. 1, 2, and 3,which is borne in a similar manner on the top of two perpendicularprojections from the frame A A A pulley, I, is seen in Fig.

This cog-wheel Q gears into the cogdrum is by this means rotated. Thefriction of the lower band G G rotates the other lowerband drum H. Theupper side of the cog- :Wheel Q gears into the cogwheel S, borne by ashaft which carries the lower one, T, Fig. 3,

of a pair of ordinary slitting-rollers. Its mate, T is also seen in Fig.3, and is actuated by means of the cog-wheel U, Fig. 1. V, Fig. 1,

is an intermediate cog-wheel, actuated by the wheel U, and. actuatingthe large cog-wheel W, Fig. 1, borne by the sh aft which carries theupper-band drum M which drum is thus rotated. The friction of the uppersteel band N rotates the other upper-band drum M. The wheel U alsoactuates the intermediate cog-wheel X, Fig. 1,which moves the cog-wheelY, Fig. 1, thus rotating a roller, Y-, Figs. 1 and 3,borne on the shaftof the wheel Y, and passing, parallel with the slitting-rollers, acrossthe space between the sides of the frame A A The cog-wheel S alsoactuates the intermediate cog-wheel Z, Fig. 1, through which is rotatedthe pair of cog-wheels A A, borne, respectively,.by a shaft, which pairof shafts carry, respectively, a roller, tlie'upper one of which is seenin Fig. 1, marked B, and both in section in Fig. 3, marked B B. Thelower cog-wheel A also actuates the intermediate cog-wheel C, whichrotates the cog-wheel D, Fig. 1, and the roller borne on it, D, Fig. 3.E, Fig. 1, is an intermediate cog-wheel, actuated by the wheel D, andactuating the cog-wheel F, Fig. 1, and thus rotating the pair ofrollersone, marked G, the lower, borne on the same shaft with the wheelF, and seen in section in Fig. 3. The wheel F rotates the cog-wheel H,Fig. 1, and thus also the upper one of the pair of rollers referred to,borne on the same shaft with the wheel H, and marked J in Figs. 1 and 3.K, Figs. 1 and 3, is a steel blade, called the upper trimmer, held in anarrow trough or frame, which passes from side to side of the frame A A,at right angles to its course, which trough is seen in Fig. 1 to be inthe shape of a parallelogram, as seen from above, and is supported byits ends being attached to theinner surfaces of the long sides of theframe A A. The shape of this blade-bearing trough, seen in section inFig. 3, causes the blade K to be held inclined at an angle of forty-fivedegrees downward, in a direction toward the two steel belts beforedescribed. A set-screw, seen in Figs. 1 and 3, serves to hold the bladeK firmly in position. L, seen only in section in Fig. 3, is a similararrangement of trough, blade, (called the lower trimmer,-) and screw, inwhich the blade inclines upward toward the belts at an angle offorty-five degrees. In Fig. 2 is seen, at M, a small cog-wheel, borne bythe shaft which carries the upper slitting-roller T Fig. 3, whichcog-wheel gearsinto another larger cog-wheel, N, Figs. 1 and 2,supported by the frame A A. This wheel .N carries, near its periphery,two short projections or pegs, P P, on opposite sides of the wheel, andparallel with the axis of the same. Q, Fig. 2, is a short peg, whoseupper side is chamfered, held at right angles to it by an arm, R, Figs.1 and 2, which arm hangs loosely from one end (the hither end, in Fig.2) of a lever, S, Figs. 1 and 2, borne by a stationary bar, T, Fig. 1,which connects two upright standards, U U, Fig. 1, (U, Fig. 2,)attached, as seen in Fig. 1, to one end of the frame A A The tops ofthese standards are connected by a crosspiece, V, Figs. 1 and 2. Theother end of the lever S bears, loosely attached to it by a rivet, anarm, W, Fig. 1, the lower end of which arm is loosely attached, by arivet, to the blade cross-piece X, Figs. 1, 2, and 3, which lattercarries a blade, Y, Fig. 3, whose cutting-edge is downward. (Seen insection in Fig. 3.) This blade cross-piece moves up and down upon twoperpendicular rods, Figs. 1, 2, and 3, held by thetop cross-piece V,and, at their lower ends, by the ends of the long sides of the frame AA. These rods are surrounded above the blade-piece X byspiral springs,seen in Figs. 1, 2, and 3, the lower ends of which press upon the upperedge of the blade cross-piece X. Below the blade cross-piece are twoother spiral springsone, marked Z is seen in Fig. 2, disposed round therods Z, whose function is to press up the blade cross-piece X. A A Fig.1, are two slabs of metal, called the guides, placed on their edges, andlying inside the frame A A, and parallel with its sides. Between thempasses the upper portion of the lower steel belt G G. The guides bear,at the point marked B in Fig. 3, eight small rollers, seen only insection in Fig. 3, whose axes are parallel with those of the band-drums.(J C, Fig. 1, (0 Fig. 3,) .is a small frame, sliding up and down betweenthe slabs A A, being held in position bya pairof c1ampsone,1) seen inFig. 1, and one, D in Fig. 2, the top and bottom of one being seen inFig. 3, marked D D which clamps are attached at their tops to theframeC, 0 pass down outside the.

O, and melted by the fire in the furnace 1)..

By movement of the lever F, the molten metal is admitted throughtheape-rture in thebottom of the melting-potinto the spoutE, throughwhich it passes down upon the lower steel band G, whichthe pulley P,Fig. 2, being put in motion-is moving over its two drums, the upperportion passing in a direction from the melting-pot. The molten metalthus received onthe lower belt is kept from running off at the side ofthe belt by the guides A A and,

as the belt moves, is carried beneath the lower portion of theupper-steel belt N, Fig. 1. By means of the eight rollers at B, Fig. 3,the lower belt is held up and kept in place, so as to present a planesurface. The lower portion of the upper belt N (which belt is also inmo-.

tion) is held down, and a plane surface is secured, by the five rollersat 0 Fig. 3. To

thicken the proposed leads, the set-screws E Figs. 2 and 3, are screwedin, thus lifting the frame 0 0 Fig. 1. The rollers are enabled to yieldslightly by means of the pair of spiral springs, one of which is seen inFig. 3. By the time the molten metal has passed on the belt beyond thesmall rollers it has solidified,

and presents the form of a thin broad sheet,

which passes between the pair of slitting-rollers T T, Fig. 3, and is bythem cut into narrow strips-four, more .or less-which pass between theroller Y, Fig. 4., and the lower trimmer-blade L, Fig. 3, and thencebetween the drawing-rollers B B, Fig. 3, which draw it against the edgeof the trimmer-blade, which length.

planes smooth the lower surface of the leads.

The leads then pass under the upper trimmerblade K, and above the rollerD, Fig. 3, to the drawing-rollers J Z G by the joint action of which theupper surface of the leads is planed smooth. The leads are then in theshape of a continuous strip of type-metal, and they pass on, by theaction of the drawingrollers J G, to a point under the blade Y, Fig. 3.The rotation (see Fig. 2) of the wheel N brings successively the pegs l?l? in contact with the chamfered peg Q, forcing it down as long as it isin the line of rotation of the pegs P P, and thus drawing down the bar Rand one end of the lever SE The bladepiece X and the blade Y'- are thuspermitted to be raised by the springs Z Fig. 2, thuspermittingthepassage of the type-metal strips.

When the-peg P quits the peg Q the spiral springs (seen in all the threedrawings) round the upright rods Z drive down the blade Y, and thus cutoil the leads to the required The pegs P P being, in practice, mademovable on the wheel N, which bears them--changeable from hole to holeon the whee1-the length of the leads is thus graduated at pleasure. Thepairs of set-screws J J and K K, Fig. 1, are useful for tightening thesteel belts. i

I sometimes dispense with some of the upperand under belt supporting andpressing rollers; and I sometimes dispense with my upper steel belt,using a simple roller instead thereof; and I can dispense with theslittingrollers: I do not always place my melting-pot and heatingapparatus upon the frame A A I do not claim the combinationof movablebelts for forming molten metal into shape; nor do I claim the tighteningof the belts by means of screws; but

I claim 1. The combination of the melting-pot and heating apparatus, theguides, and the lower steel belt, with the small rollers borne by theguides above and below the belt, with the slitting-rollers, allsubstantially as described.

2. The combination of the melting-pot and heating apparatus, the guides,and the lower steel belt, with the small rollers borne by the guidesabove and below the belt,'with the stationary blades L and K and the twopairs of drawing-rollers, all substantially as described.

3. The combination of the melting-pot and heating apparatus, the guides,and the lower steel belt, with the small rollers borne by the guidesabove and below the belt, with one or more pairs of drawing-rollers andthe cuttingoff blade Y with its actuating apparatus, all substantiallyas described.

4. The combination of the melting-pot and heating apparatus, the guides,the moving belts and the intermediate rollers, the slittingrollers, andthe planing blades, with their pressing-down and drawing rollers, andthe cutting-off blade and attachments, all substantially as described.

JOHN GOODALE.

Witnesses:

LEMUEL P. J ENKS, S. DAVIS.

